Crank-hanger.



No. 662,260. Patented Nov. 20. |900. W. H. FAUBER.

CBANK HANGER.

(Application led Oct. 19, 1898.

l(No Model.)

YH: Noms PETERS CO. PNOYD-L'IYNO, WASHINGTON. n. c.

UNITED STATES PATENT OFFICE,

WILLIAM I-I. FAUB'ER', or oIIIoAGo, ILLINOIS.

CRANKQHANGER.

SPECIFICATION forming part of Letters Patent No. 662,260, dated November 20, 1900.

Application tied oototerle, 189s.

To all whom, it may concern:

Be it known that I, WILLIAM H. FAUBER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvement in Crank-Hangers; and I do herebydeclarethat the followingis afull,clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to an improved construction in means for connecting the framebars of a bicycle with a hanger-sleeve or tubular part in which the crank-shaft bearings are supported.

The invention consists in the matters hereinafter described, and pointed put in the appended claims.

As shown in the accompanying drawings, Figure l is a View in central vertical section of one hanger-sleeve, together with the lugs or tubular projections, by means of which the frame members are attached to said sleeve. Fig. 2 is a sectional View taken on line 2 2 of Fig. l. Fig. 3 is a plan View of the part shown in Fig. l. Fig. 4 is a side elevation of the central lug separated from the hangersleeve. Fig. 5 is a View in side elevation of the lug for the forward frame-bar. Fig. 6 is a similar view of said forward lug, showing the flange thereof in side view. Fig. 7 is a detail section showing a modified construction in the holding-ilange of the sleeve.

The parts shown in the accompanying drawings constitute what is commonly known as the crank-hanger sleeve or bracket, and the same consists of a tube or sleeve A, which constitutes the body of the bracket, and three attached tubular projections or lugs B, C, and D. The sleeve A is adapted to receive the bearing rings or cups of a ball-bearing and to support the same in proper position with respect to each other and the bearing members upon the crank-shaft which is inserted through said sleeve. As herein shown, the sleeve A is provided with internal screwthreads a ct' for engagementwith corresponding screw-threads on the bearing members or cups; but said sleeve may be otherwise constructed to receive or hold the external bearing members of the crank-shaft bearings, as may be desired or preferred. The lugs B, C,

Serial No. 694,056. (No model.)

and D are each of tubular or cylindric form and provided at their ends adjacent to the sleeve A with integral flanges, as indicated on the drawings by B', C', and D'. The said flanges B', C', and D' are curved to conform to the curvature of the external surface of the sleeve A and are fitted accurately thereto. The lugs are joined tothe sleeve by soldering or brazing, and the said flanges B', C', and D' afford extended surfaces in contact with the sleeve, which afford a large area in the brazed joints between the lugs and sleeve, and thereby afford an exceedingly strong connection between the same. In order to afford the greatest possible area of contact between the flanges B', C', and D' and the sleeve, said flanges are made of rectangular form, are fitted closely to each other at their meeting edges, and extend laterally on either side of the lugs, so as to cover approximately the entire outer surface of the sleeve. They may,

however, be extended toa greater or less distance laterally from the lugs, according to the requirements of the particular case, Without departure from my invention. flanges B', C', and D' are arranged to meet each other at points between the central and front and rear lugs; but at the lower sides of the lugs B and D said flanges are extended for a considerable distance downwardly along the curved face of the sleeve, so as to give an extended contact-surface at this point. Such extended parts of the flanges might of course meeteach other beneath thesleeve; but usu-l ally I prefer to insert a curved filling-piece E between the lower ends ofthe flanges B' and D', so as to give a smooth cylindric form to the sleeve without making said flange B" and D' unduly long at the lower sides of the lugs there attached. The filling-piece E, however, serves mainly to `give a finished appearance to the hanger as a whole and is not essential or necessary so far as the general results desired are concerned.

The several lugs B, C, and D are, as shown in the drawings, designed for making what is known as a flush-joint frame, and for lthis purpose are provided with shoulders b, c,

and d, against which the ends of the frame` tubes abut when the outer parts of the lugs are inserted therein. The presence of such flanges is not, however, necessary, and the The said IOO same results will be produced if the lugs be made without said shoulder, in which case the ends of the frame members may and commonly will reach to the outer surfaces of the flanges B, C', and D. Said lugs B, C, and D, with their integral flanges, are shown as made of drawn metal and the lugs as being provided with partially-closed outer ends or heads.

As a further improvement in a hangersleeve provided with the features of construction above described, I form upon the end portions of the sleeve A two outwardlyextending circumferential ribs or flanges a2 a2, between which the side margins of the flanges B', C', and D of the lugs are closely fitted. When the said flanges a2 are first made, they rise from the face of the sleeve a distance somewhat greater than the thickness of the metal forming the lug-flanges, so that when the lugs are placed in position upon the sleeve preparatory to brazing they may be held in position thereon by hammer ing down or upsetting said flanges or the ininner parts thereof into contact with the edges of the said lug-flanges. To facilit-ate this operation, I make the sleeve-flanges a2 with relatively thin edges or lips a3 a3, Fig. 2,

which may be easily bent over the lug-flanges at the time of securing them in place. The flanges a2 made as described obviously not only serve to hold in place the several lugs during the operation of brazing, but they also serve as guides to accurately hold the lugs in the same vertical plane, and when the parts are finished form smooth or continuous edges at the side margins of the sleeve, it being of course understood that after the brazing operation is completed said flanges will be filed or otherwise reduced until flush with the adjacent surfaces of the lug-flanges.

A variation in the angular location or position of the lugs B, C, and D is often required in making frames of dierent styles or proportions, and such variations in the position ol' the lugs is readily accomplished in the construction described by making thev lug-flanges wider or narrower or by originally constructing those on the central lug of a width equal to the greatest that may be required in any case and then reducing same by filing. Moreover, where a considerable difference in the angle of the lug is required, as in making a drop-frame or ladys wheel, a lug made like the lugs B and D illustrated may be reversed, so as to bring the longer part of the flange uppermost, so that it will reach to the flange of the central lug C.

When the article made as described is manufactured and sold as a separate part or fitting, the lugs will usually not be brazed to the sleeve, the attachment of the lugs to the sleeve being in such instance performed by the person who makes the frame and who will braze the lugs to the sleeve at the same time the frame members are secured to the lugs. When the article is thus supplied, the

l detached lugs may be readily secured in place upon the sleeve by slightly hammering down or bending over the flanges a sufficiently to engage and hold the lug-flanges and the article thereby furnished with the parts counected, although the lugs will be left Sulliciently loose to be accurately adjusted to place preparatory to brazing.

A hanger sleeve or bracket made as herein described has many important advantages. A principal advan tageis that it is very strong, because the sleeve itself is complete or continuous, while the extended contact-surfaces between the lug-flan ges and the sleeve aord brazed joints of ample strength. Another important advantage is that it is very cheap to manufacture, because the central sleeve can be easily or cheaply made, and the flanged lugs being made separately can be easily and rapidly made of drawn metal. Another irnportant advantage arising from the construction described is that the lugs can be readily adjusted into position upon the sleeve to agree with the angles of theframe-members which are to be joined thereto, so that with a single set of formingtools brackets can be supplied for frames of dierent designs or proportions.

The employment of holding-flanges a on the sleeve is of great benefit, for the reason that it greatly simplifies and facilitates the brazing operation, it being obvious that the presence of said flanges makes it unnecessary to join the parts prior to brazing by holding pins or rivemts or by the use of wire or other expedients, which are both troublesome and increase the work required in finishing the article after the brazing operation. The employment of the thin edge or lip d on the holding-flange is of especial advantage, as such edge or lip can be easily closed or bent down over the flanges on the lugs by a few blows of a hammer or by the use of other suitable implement, thereby enabling the lugs to be attached to the sleeve by a simple operation, which can be quickly performed. Moreover, such thin lip or flange can be easily and quickly removed by filing or like process after the brazing operation or in the process of finishing the hanger-sleeve.

In Fig. 7 I have shown a construction in the hanger-sleeve in which the holding-flange a is made of slightly different shape from that shown in the other figures, said flange in this instance being undercut or made to slightly overhang the adjacent surface of the sleeve, while the side margins of the lug-flanges are shaped to conformto the overhanging surface of the flange, which in the instance illustrated is made oblique," so that both flanges together form what is equivalent to a dovetailed groove. When the sleeve is thus constructed, the overhanging part of one or both flanges will be cut away at one point in the circumference of the sleeve (preferably at the lower part thereof) to permit the convenient insertion of the lugs or the engage- IOO IIO

ment of the flanges thereof With the holdingflanges. In this construction obviously the overhanging holdingflanges Will retain the lugs in contact with the sleeve during shipment and While the brazing operation is being performed. If desired, the lugs may be secured from sliding movement after they have been brought to their proper position by strokes of the hammer upon the overhanging part of the flange, so as toclose the latter against the lug-Hanges, and thereby hold the lugs firmly from movement in either direction.

I claim as my inventionl. A crank shaft hanger comprising a hanger-sleeve and a plurality of radial tubular lugs, each made of a single piece of sheet metal and the lugs being provided at their inner ends with continuous flanges, the flanges of each lug being independent of the flanges of the others, which are curved to fit the outer surface of the sleeve and abut against each other end to end and extend from said lugs toward the ends of the sleeve so as to cover substantially the entire outer surface of the sleeve, said flanges affording independent angular adjustment of said lugs prior to their permanent attachment to the sleeve.

2. A crank shaft hanger comprising a hanger-sleeve and a plurality of radial tubular lugs, each made of a single piece of sheet metal, and the lugs being provided at their inner ends with continuous flanges, the anges of each lug being independent of the lianges of the others, Which are curved to fit the outer surface of the sleeve and abut against each other end to end and extend from said lugs toward the ends of the sleeve so as to cover substantially the entire outer surface of the sleeve, thereby affording independent angular adjustment of said lugs prior to their permanent attachment to the sleeve, and said sleeve being provided With circumferential holding-anges adapted for engagement With the side edges of the flanges on the lugs.

3, A crank shaft hanger, comprising a hanger-sleeve and a plurality of drawn-metal tubular lugs, provided with outwardly-extending integral iianges Which are curved to lit the outer surface of the sleeve, and which abut against each other end to end, thereby affording independent angular adjustment of the lugs prior to their permanent attachment to the sleeve, said sleeve having circumferential holding-flanges, adapted for engagement with the side edges of the flanges on the lug, said holding-flanges being provided with thin edges or lips which rise above the surface of the flange on the lug, and which are adapted to be bent or folded over the same to hold the lug upon the sleeve.

4. A crank shaft hanger, comprising a hanger-sleeve, and a plurality of lugs having at their outer ends integral heads and at their inner ends flanges which extend radially out.- Wardly from all sides thereof, and are curved to fit the outer surface of the sleeve and which abut against each other end to end, thereby affording independent angular adjustment of said lugs prior to their permanent attachment to the sleeve, said sleeve being provided Vat its opposite ends With. circumferential holding-flanges, and said flanges on the lugs being shaped at their edges to fit against each other and against the holding-flanges of the sleeve.

5. A crank shaft hanger comprising a hanger-sleeve and a plurality of radial lugs each of which is provided at its inner end with flanges extending radially outwardly from all sides thereof and curved to lit the outer surface of the sleeve, the flanges of each lug being independent from the fianges of the others and constructed to afford independent angular adjustment of said lugs prior to their permanent attachment to the sleeve.

In testimony that I claim the foregoing as my invention I affix my signature, in presence of two Witnesses, this 21st day of September, A. D. 1898.

WILLIAM H. FAUBER.

Witnesses:

WILLIAM L. HALL, O. A. NEALL. 

